Y10 Image/Sound representation. Flashcards
1
Q
Will digital sound ever be able to recreate analogue sound?
A
No as there will not be enough samples to recreate it exactly
2
Q
Which will be the better quality sound?
a. 44.1 Hz
b. 22 Hz
c. 199 Hz
A
C as it has many more samples than any of the others.
3
Q
How is digital sound represented?
A
Binary
4
Q
What would someone mean if they said ‘This monitor is 1920*1080p’?
A
It has 1080 pixels going up, and 1920 pixels across.
5
Q
What is a pixel?
A
A section of an image
6
Q
What happens if you have more pixels?
A
The image quality will get better and it will have a higher resolution.
7
Q
What is the formula for measuring image file size?
A. File size = Pixel area x Colour depth
B. File size = Vertical pixels x Colour depth
C. File size = Horizontal pixels x Colour depth
A
A.
